package Day20;

/*
public class Rescuision02 {
    public static void main(String[] args){
      A a = new A();
      int day = 1;
      int res = a.peach(day);
        System.out.println(res);
    }
}

class A{
    public int peach(int day){
       if(day == 10){
           return 1;
       }else if(day >= 1 && day <= 9){
           return (peach(day+ 1) + 1) * 2;
       }else{
           System.out.println("请输入整数(day1-10)");
           return -1;
       }
    }

}
*/

